Diaphragm type multifunctional pump control valve is installed in the pump outlet high-rise building water supply systems and other water supply system to prevent the media back, water hammer and water hammer phenomenon of tough energy-valve. This valve combines electric valve, check valve and water hammer eliminator three functions, which can effectively improve the safety and reliability of the water supply system. And the slow opening, fast closing, slow closing to eliminate water hammer principle of integration of technology to prevent water hammer and pump Water hammer generation. Just pump motor hoist operation button, you can automatically open and close valves in accordance with the rules pumps, flow, pressure loss. Diaphragm Valve 600 is suitable for the following caliber.